Clicking each saves a zip file into AppData/local/Temp, size of each zip file is 137 KB

Clicking : ‘extract to Bundlestorm v2 Part 1’ gives message – No archives found.
Popup advises, The archive is either in unknown format or damaged.

As to registration / licence, read the following –
‘The download links for BundleStorm v2 are given to you above. The downloads are exclusive for SharewareOnSale. Download each file, unzip it, and simply start using the graphic assets (vectors, icons textures, stock photos, patterns, etc.)! There is no need to register anything. Enjoy!
A series of errors, and a pity, it looks good.